Electrical connector

• US 20070032104A1
• Filed: 08/09/2006
• Published: 02/08/2007
• Est. Priority Date: 08/08/2005
• Status: Abandoned Application

• Current Assignee: DDK Limited (Fujikura Limited)
• Original Assignee: DDK Limited (Fujikura Limited)
• Inventors: Yamada, Akio, Ozai, Kazuyuki, Ishizuka, Shinya
• Application Number:
  US11/501,988
• Publication Number:
  US 20070032104A1
• Time in Patent Office: Days
• US Class Current: 439/76.100
• CPC Class Codes: H01R 12/62 connecting to rigid printed circuits or like structures
• CPC Class Codes: H01R 13/6466 on substrates, e.g. printed circuit boards [PCB]
• CPC Class Codes: H01R 13/6471 by special arrangement of ground and signal conductors, e.g. GSGS [Ground-Signal-Ground-Signal]
• CPC Class Codes: H01R 13/6473 Impedance matching
• CPC Class Codes: H01R 13/719 specially adapted for high frequency, e.g. with filters
• CPC Class Codes: H05K 1/023 using auxiliary mounted passive components or auxiliary substances printed passive components H05K1/16
• CPC Class Codes: H05K 1/117 Pads along the edge of rigid circuit boards, e.g. for pluggable connectors

Abstract

An electrical connector includes, in substitution for contacts, a substrate having a plurality of signal patterns and a plurality of ground patterns on at least one surface, each of these patterns having at one end a contact portion adapted to contact a mating object and at the other end a connection portion to be connected to a cable, a housing having an inserting hole for inserting the substrate therethrough, and holding members for fixing the substrate to the housing. A capacitor and a resistance chip connected in parallel are mounted on at least one of the signal patterns. In this manner, the connector achieves its miniaturization, stability of impedance, reduction in cross talk, and better return loss level and transmission characteristics.

Claims

1. An electrical connector including a plurality of contacts and a housing for arranging and holding said contacts therein, said electrical connector comprising in substitution for said contacts, a substrate including a plurality of signal patterns and a plurality of ground patterns provided on at least one surface, each of these patterns having at one end a contact portion adapted to contact a mating object and at the other end a connection portion to be connected to a cable;

said housing having an inserting hole for inserting said substrate therethrough; and

holding means for fixing said substrate to the housing, and a capacitor and a resistance chip connected in parallel being mounted on at least one of said signal patterns.

2. The electrical connector as set forth in claim 1, wherein said holding means comprises at least two anchoring portions provided at predetermined positions of said substrate, and holding members each having a substantially U-shape and having engaging portions adapted to engage said anchoring portion so that said holding members are inserted into inserting slits of the housing to bring the engaging portions into engagement with said anchoring portions, respectively.

3. The electrical connector as set forth in claim 1, wherein the plurality of said signal patterns and the plurality of said ground patterns are arranged in a manner that one signal pattern is located between two ground patterns, and these patterns are arranged on both surfaces of said substrate.

4. The electrical connector as set forth in claim 1, wherein the capacitor and the resistance chip connected in parallel are mounted on each of the eight signal patterns, and among them the four signal patterns having the capacitor and the resistance chip are mounted on one surface of said substrate and the remaining four signal patterns are mounted on the other surface of said substrate in a symmetrical relationship with said four signal patterns mounted on the one surface of said substrate.

5. The electrical connector as set forth in claim 2, wherein the plurality of said signal patterns and the plurality of said ground patterns are arranged in a manner that one signal pattern is located between two ground patterns, and these patterns are arranged on both surfaces of said substrate.

6. The electrical connector as set forth in claim 2, wherein the capacitor and the resistance chip connected in parallel are mounted on each of the eight signal patterns, and among them the four signal patterns having the capacitor and the resistance chip are mounted on one surface of said substrate and the remaining four signal patterns are mounted on the other surface of said substrate in a symmetrical relationship with said four signal patterns mounted on the one surface of said substrate.

7. The electrical connector as set forth in claim 3, wherein the capacitor and the resistance chip connected in parallel are mounted on each of the eight signal patterns, and among them the four signal patterns having the capacitor and the resistance chip are mounted on one surface of said substrate and the remaining four signal patterns are mounted on the other surface of said substrate in a symmetrical relationship with said four signal patterns mounted on the one surface of said substrate.

8. The electrical connector as set forth in claim 5, wherein the capacitor and the resistance chip connected in parallel are mounted on each of the eight signal patterns, and among them the four signal patterns having the capacitor and the resistance chip are mounted on one surface of said substrate and the remaining four signal patterns are mounted on the other surface of said substrate in a symmetrical relationship with said four signal patterns mounted on the one surface of said substrate.